All the Looks From the Serpentine Gallery Summer Party

Every summer the Serpentine Galleries—two contemporary art galleries in the middle of Hyde Park, which is sorta like London's version of Central Park—have a giant party. And every year, they draw out the city's biggest names in the season's best fashions, like this year's event, which counted Cara Delevingne, Keira Knightley, and Alexa Chung among the guests, and saw women wearing everything from red sequin dresses (Naomi Campbell) to geometric print jumpsuits (Nicky Hilton).